Spot check for phet website

[mattpen]

@phet-steele - The new server is now live at phet.colorado.edu. Can you do a brief look through and make sure everything is acting as expected? The items tested in #584 would be good candidates for review here.

[phet-steele]

A few things I've tried so far, with appropriate issues made:

• Browsing the website in RTL languages and alternate fonts
• Running and downloading simulations
• Translating the website and deploying new website translations (a trusted translator happened to unknowingly do this for me)
• Downloading and uploading contributions
• Translating and deploying a translation of an HTML5 sim with rosetta (@jbphet performed this and I agreed with him that what he had done is sufficient)
• Creating a user account
• Editing the profile
• Changing the email address
• Changing the password
• Editing the Help Center
• Checking around for broken links
• Checking access to primers/activities based on being logged in
• Uploading and editing a contribution

[phet-steele]

@mattpen things are working well.

[mattpen]

Thanks for checking, I'm going to take the maintenance message down.